It was broad daylight as the 17-year-old community college student left her bus near busy Edmondson Avenue in Catonsville. Two men in a gold SUV pulled up and forced her at gunpoint into the back seat, where police said one raped her, then stole her phone and wallet.

Later that day, a young couple was stopped by a similar truck. The two men inside offered a ride, but refused to let the man and woman out until they relinquished their cash. The incidents came just about a week after an 18-year-old had told police she was abducted, robbed and sexually assaulted in what authorities believe was the same Ford Explorer.

City and county police have charged William Justin Campbell, 25, in all three of those incidents. Kenyon Travis Waller, 22, has been charged in the two abductions that took place on the same day. Police say they are investigating whether the two men were involved in similar reported incidents, and are asking other potential victims to come forward.

"Waller and Campbell are dangerous people," Baltimore County Police Chief James W. Johnson said Thursday at a joint news conference at which Johnson and Baltimore Police Commissioner Anthony W. Batts laid out allegations that Campbell and Waller abducted their victims, robbing some and sexually assaulting others.

The similarity of the incidents helped detectives identify the men and draw links between the cases. Campbell and Waller have been accused of first-degree rape, armed robbery, kidnapping and related charges.

The two men do not yet have attorneys, according to online court records. Reached by phone, a member of Waller's family declined to comment. Campbell's family could not be located.

The Community College of Baltimore County student got off the bus at Ingleside and Edmondson avenues at about 12:40 p.m. Oct. 1 and was headed to a different stop when the men pulled up, police said. Campbell, the driver, got out and forced her inside, where Waller was sitting in the back seat with a handgun, she told police.

The men drove her to an alley in Baltimore, according to police, and Waller raped and robbed the girl.

As detectives began investigating, a young couple in the city reported that they had been abducted by two men with similar descriptions driving a gold SUV in the 2500 block of Liberty Heights Avenue.

The couple were waiting for a ride home when Campbell and Waller allegedly offered them a ride. When the couple got into the car, Campbell and Waller asked for cash up front so they could buy a pack of cigarettes, according to charging documents.

After stopping at a 7-Eleven, they drove east of Druid Park Drive and Greenspring Avenue and one of the men pulled a semi-automatic handgun on the victims, according to court documents. The male victim then jumped from the car, but the woman remained.

At one point, Waller, who was sitting in the front passenger seat, allegedly got into the back with the woman. He pointed the gun at her, took her cellphone and poured liquor on it so she could not make any phone calls, charging documents said.

Campbell and Waller demanded money, she told police, but the victim said she didn't have any more. The two men allegedly told her to call someone who had $100 and then they would let her go.

She used one of the men's cellphones to call an aunt, who agreed to meet at a bar on West 29th Street and withdrew cash from an ATM.

Campbell and Waller allegedly took the cash, let the victim go, and fled the area.

The victims in that incident provided police with a better description of the vehicle, which led them to the Ford's owner, who knew one of the men.

Police then revisited the case of another victim, an 18-year-old who had reported a similar kidnapping and robbery the morning of Sept. 25.

In that incident, the victim told police that she had just gotten off a bus near the intersection of Ingleside and Edmondson and was walking to work when the driver of a similar gold SUV pointed a handgun at her and forced to get in. She told police the driver threatened to harm her if she reported him.

The driver, later identified as Campbell, then allegedly drove to an apartment complex on Fern Valley Circle where she was forced to perform a sexual act on him, she told police. Campbell then stole the woman's identification, money and a camera before she was let out of the vehicle and he drove away, she told police.

A 31-year-old man who was sentenced to 20 years in prison in Baltimore after he pleaded guilty to possessing 5.9 grams of marijuana won an appeal Wednesday invalidating the plea — raising the possibility that he will be released.